Jellyfin
Open source media system
Tag: tools 
Tag: tools
Open source media system
Pixel art editor for iOS, Android and Desktop
Free online app for creating pixel art.
Create 8 or 16 bit game sounds
Converts a curl command into your programming language of choice.
A small game framework structure for getting started with Haxe/Heaps from the lead dev of Dead Cells.
Toolset that combines content (YouTube, Netflix, blog posts, wikipedia, etc) with Anki to make creating flashcards easy. Also has some advanced tools like pitch accent help, etc.
Low-poly modeler
An online tool that draws a grid on an image.
Site for learning Kanji
Voxel editor
Promoting malleable systems (programs/solutions that can be changed by the user).
Color schema generator
Using Anki for various tasks to improve long-term memory.
Free voxel editor.
Pointers to useful, well-written, and otherwise beautiful documentation.
A tool from Pingdom that analyzes the performance of a URL.